Table 3:

S_vO₂ at different time phases of cardiopulmonary bypass related to survival

	30-day survival			3-year survival
	SvO2 level			SvO2 level
Time interval	<75%	>75%	P-value	<75%	>75%	P-value
S-10	95.0	97.9	0.021	87.7	92.0	0.043
S-20	95.2	97.6	0.081	89.8	91.2	0.524
S-30	95.2	97.7	0.077	90.9	91.0	0.935
E-30	96.0	97.7	0.156	89.2	91.7	0.203
E-20	96.0	98.0	0.073	89.2	92.2	0.104
E-10	95.0	98.1	0.011	86.6	92.7	0.003

Kaplan–Meier-derived survival statistics for 30-day and 3-year based on S_vO₂ from different time phases of cardiopulmonary bypass (CPB). Time intervals include S10–S30 and E30–E10 for commence and termination of CPB, respectively. Each time span covers 10 min of CPB. P-values represent log-rank statistics.